Question

Genevieve was working on a science lab. In her lab, she was combining two chemicals and timing how long the reaction took to form a precipitate. She repeated the investigation a total of five times. Her times are shown below.

Answer 1

trial time (min:sec)
1 08:37
2 07:59
3 08:16
4 08:21
5 08:03
The next day, the instructor told Genevieve that the standard time for her investigation should have been 8 minutes 7 seconds. Which of the following choices describes Genevieve's work in the lab?
Her test trials had a low level of accuracy and a low level of precision.

Her test trials had a low level of accuracy but a high level of precision.

Her test trials had a high level of accuracy but a low level of precision.

Her test trials had a high level of accuracy and a high level of precision.

Answer 2

@nic2131

Answer 3

plz

Answer 4

@nic2131 i need help plzz

Answer 5

@Here_to_Help15

Answer 6

@Here_to_Help15 can you help me

Answer 7

high accuracy and low precision.

Answer 8

the times are all close to the expected time of 8 minutes 7 seconds, but relatively far apart from each other.

Answer 9

dude you are life saver can you help with 9 more it a lot to ask but can you plz help me

Answer 10

plzz

Answer 11

@nic2131

Answer 12

Becky and Michael went to the grocery store to buy ingredients for trail mix. They filled one bag with almonds and weighed it three times on the store's scale. The results are shown below.
trial weight (lbs.)
1 3.29
2 3.71
3 2.90
When they took the almonds to the cashier, the actual weight turned out to be 2.25 pounds. How might they describe the first scale they used?
It has a low level of accuracy and a high degree of precision.
It has a low level of accuracy and a low degree of precision.
It has a high level of accuracy and a low degree of precision.
It has a high level of accuracy and a high degree of precision.

Answer 13

@nic2131

Answer 14

probably 2

Answer 15

medal me